Ben Martin's Radio Flea Market
 
800-595-0191
 
Click on the link above to contact me.
To see more of my radios, visit Ben Martin's Radio Flea Market.

Vacuum Gauge Tube CVC Type GMA-001

Vacuum Gauge Tube CVC Type GMA-001
The Principles of Operation of Thermocouple gauges measure pressure in terms of the amount of heat that gas will conduct away from a hot wire. The sensing element is a combination heater and thermocouple. Cross-shaped, it is formed by joining two short resistance wires of different compositions, a method of construction which gives excellent shock resistance and yet provides the minimum mass required for fast response. With a fixed heater power, the temperature of the junction, which depends on the conductivity of the gas, is indicated by the voltage output of the thermocouple. As the pressure drops, the thermocouple gets hotter and its output increases. Readout is accomplished on a millivolt meter calibrated to indicate pressure.   $95.00. (1020833)
You are visitor number 647 to this page.
.
Back to the Flea Market  |  What's New?  |  Ben's Radio Attic  
Ben's Radio Library  |  Ben's Novelty Radios  |  Ben's Radio Manuals  

© 2017  Ben Martin's Radio Flea Market